A very old thread, but there was Chester War Hospital, which I believe was started after the Workhouse at Hoole was commandeered.
I have good reason to be interested - My grandfather copped a blighty (shrapnel wound to the thigh) on the Western Front, and being a Manchester lad was taken to the nearest War Hospital to home. He took a shine to a Somerset lass who was nursing there, and a couple of years later married her, and they were together until he died in 1978.
I have my grandmother's enamel badges from the hospital.